Hydrogen Bromide → Pyrogallol

Participants

Reaction Steps

The product of Example 3 was added to 48% aqueous hydrobromic acid (400 parts) and the mixture boiled under reflux in an atmosphere of nitrogen for one hour. The hydrobromic acid was then evaporated off under reduced pressure to leave crude pyrogallol (40 parts, 90% yield), melting point 124°-130° C., the structure of which was confirmed by its nuclear magnetic resonance spectrum.

Provenance & Evidence